Evaporation is when a material moves from a liquid to gaseous phase. Evaporation is a cooling process. Duration: 5:27.
If water molecules have enough thermal energy, they can escape the liquid phase beneath the surface of the liquid. This is called boiling. Duration: 12:32.
It takes energy to go from a solid to a liquid or a liquid to a gas. Conversely, energy is released when a material goes from a gas to a liquid or from a liquid to a solid. Duration: 5:21.
It takes a lot of energy to change 100 degree liquid water to 100 degree gaseous water. This amount of energy is given by the heat of vaporization. Duration: 6:28.
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